- Supreme Court of the United States | Friday, June 26, 1987 | Cited 0 times
- Court of Appeals for the Eighth Circuit | Friday, October 23, 1987 | Cited 0 times
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- Court of Appeals for the Eighth Circuit | Friday, January 27, 1989 | Cited 0 times
- Supreme Court of the United States | Wednesday, April 18, 1990 | Cited 0 times